4 ms·
> less abundant than silver Hmmm. So are these proposed batteries viable? Are they mostly Sulphur and a bit of Selenium (and presumably some other stuff)?
by nonrandomstring 3y ago
> less abundant than silver
Hmmm. So are these proposed batteries viable? Are they mostly Sulphur
and a bit of Selenium (and presumably some other stuff)?
- pfdietz 3y agoHere's the USGS 2023 Mineral Commodities Summary for Selenium. https://pubs.usgs.gov/periodicals/mcs2023/mcs2023-selenium.pdf https://pubs.usgs.gov/periodicals/mcs2023/mcs2023-selenium.p... World production for 2022: 3,200 tonnes World reserves: 81,000 tonnes There's not a whole lot available. It occurs at 0.5 to 12 ppm in coal, so large amounts of coal ash might be a future resource. It's not economic to extract that now, vs. current secondary extraction from copper anode slimes.
- pfdietz 3y agoI will add that the concentration of Se in carbonaceous chondrites is around 20 ppm. Eventually we might mine asteroids for it.